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• Allergic Rhinitis

  Rhinitis

  Rhinitis is when a reaction occurs that causes a stuffy nose, runny nose, sneezing, and itching. Most types of rhinitis are caused by an inflammation. Here's what you need to know.
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• Allergy

  Allergy Overview

  Allergies are problems of the immune system. Normally the immune system attacks harmful things such as viruses or bacteria. But sometimes it overreacts and responds to things that are normally harmless. These include dust, mold, pollen, or food.
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• Allergy (Food)

  Food Allergy

  A food allergy is when your body has a bad immune reaction to a certain food. This is different than a food intolerance, which does not affect the immune system. Read on to learn more.
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• Allergy (Medication)
• Angioedema
• Asthma

  Asthma

  Asthma is a long-term (chronic) lung disease. The airways react to triggers (allergens and irritants). This makes it hard to breathe. With exposure to triggers, these changes make the airways narrow. It is hard for air to go out of the lungs. And fresh oxygen can't get into the body.
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• Autoimmune Disease
  
• Behcet´s Disease
  
• Eczema

  Atopic Dermatitis

  Atopic dermatitis, also called eczema, is a chronic skin disorder. It causes dry, itchy, scaly patches on the skin, often on the face and scalp in babies. It’s most common in infants or very young children. Symptoms may last until the teens or adulthood. 
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• Fibromyalgia

  Fibromyalgia

  Fibromyalgia is a condition that causes pain in muscles and soft tissues all over the body. It is an ongoing (chronic) condition. It can affect your neck, shoulders, back, chest, hips, buttocks, arms and legs.
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• General Allergy and Immunology

  Home Page - Allergy, Asthma, and Immunology

  Allergy and asthma are among the most common heath problems. Learn more about allergy, asthma, and immunology.
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• Hay Fever
• Immune Deficiency Disorders

  Immune System Disorders

  When your immune system doesn't work the way it should, it is called an immune system disorder.
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• Inflammatory Rheumatic Disease
  
• Kawasaki´s Disease
  
• Lupus

  Lupus

  Systemic lupus erythematosus (lupus) is a disease that causes your body's immune system to attack its own cells and tissues. It causes periods of inflammation to various parts of the body. It can affect your joints, tendons, and skin. It can affect blood vessels. And it can affect organs such as the kidneys, heart, lungs, and brain.
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• Mixed Connective Tissue Disorder
  
• Musculoskeletal Ultrasound
• Non-allergic Rhinitis

  Rhinitis

  Rhinitis is when a reaction occurs that causes a stuffy nose, runny nose, sneezing, and itching. Most types of rhinitis are caused by an inflammation. Here's what you need to know.
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• Pediatrics
• Polyarteritis Nodosa
  
• Psoriatic Arthritis
  
• Pulmonary Function Test

  Pulmonary Function Tests

  Pulmonary function tests (PFTs) are tests that show how well your lungs are working. The tests measure lung volume, capacity, rates of flow, and gas exchange. This information can help your healthcare provider diagnose and decide the treatment of certain lung disorders.
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• Raynaud´s Syndrome
• Reactive Arthritis (Reiter´s Syndrome)
• Relapsing Polychondritis
  
• Rheumatoid Arthritis

  Rheumatoid Arthritis

  Rheumatoid arthritis (RA) is a long-term (chronic) disease that causes inflammation of the joints. The inflammation can be so severe that it affects how the joints and other parts of the body look and function.
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• Scleroderma

  Scleroderma

  Scleroderma is an ongoing (chronic) disease that causes abnormal growth of connective tissue. It can affect the joints, skin, and internal organs. It is degenerative and gets worse over time.
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• Sinusitis

  Sinusitis

  Sinusitis is an infection of the lining of the sinuses near the nose. If mucus drainage is blocked, bacteria may start to grow. This leads to a sinus infection, or sinusitis. The most common viruses and bacteria that cause sinusitis also cause the flu or certain kinds of pneumonia.
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• Spondylarthropathies
• Takayasu´s Arthritis
  
• Urticaria

  Urticaria/Hives

  Urticaria, or hives, is a condition in which red, itchy, raised areas appear on the skin. Hives vary in size and may come and go. Hives can affect most of the body or just a small area. Detailed information on urticaria, also called hives, including what food and medicines commonly cause hives.
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• Wegener´s Granulomatosis
  

• Autoimmune disease
• Immunodeficiency

Dr. Yen has published in Annals of Internal Medicine, Arthritis & Rheumatology among others.

1. Yen EY, Shaheen M, Woo JMP, Mercer N, Li N, McCurdy DK, et al. 46-Year Trends in Systemic Lupus Erythematosus Mortality in the United States, 1968 to 2013: A Nationwide Population-Based Study. Ann Intern Med. 2017;167(11):777-85.
2. Boneparth A, Radhakrishna SM, Greenbaum LA, Yen E, Okamura DM, Cooper JC, et al. Approach to Membranous Lupus Nephritis: A Survey of Pediatric Nephrologists and Pediatric Rheumatologists. J Rheumatol. 2017;44(11):1619-23.
3. Westwell-Roper C, Lubieniecka JM, Brown KL, Morishita KA, Mammen C, Wagner-Weiner L, Yen E, et al. Clinical Practice Variation and Need for Pediatric-Specific Treatment Guidelines Among Rheumatologists Caring for Children with ANCA-Associated Vasculitis: An International Clinician Survey. Pediatr Rheumatol Online J. 2017;15(1):61.
4. Yen EY, Singh RR. Lupus - An Unrecognized Leading Cause of Death in Young Females: A Population-Based Study Using Nationwide Death Certificates, 2000–2015. Arthritis Rheumatol. 2018;70(8):1251-55.
5. Singh RR and Yen EY. SLE Mortality Remains Disproportionately High, Despite Improvements over the Last Decade. Lupus. 2018;27(10):1577-1581.

Study Reveals Lupus Is a Leading Cause of Death in U.S. Women (The Rheumatologist)
SLE Is a Leading Cause of Death Among Women (The Rheumatologist)
Lupus Foundation of America Supported Grant Finds Lupus is an Unrecognized Cause of Death in Women (Lupus.org)
Lupus-Related Mortality Has Declined, but Gap Remains (Medscape)
Lupus is quietly killing young women (MDedge)
A 46-Year Study Traces the Lupus Death Rate from 1968–2013 (The Rheaumatologist)
Mortality rate for people with lupus remains higher than U.S. rate overall (UCLA Newsroom)
Trends in Systemic Lupus Erythematosus Mortality in the United States, 1968 to 2013: A Nationwide Population-Based Study (Annals of Internal Medicine)
Lupus - An Unrecognized Leading Cause of Death in Young Females: A Population-Based Study Using Nationwide Death Certificates, 2000–2015 (Wiley Online Library)

Note: News website links may expire without notice.

• Super Doctors® Southern California Rising Stars 2019